iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

scsi: core: Drop obsolete Linux-specific SCSI status codes

Browse Source 
Originally the SCSI subsystem has been using 'special' SCSI status codes,
which were the SAM-specified ones but shifted by 1.  As most drivers have
now been modified to use the SAM-specified ones, having two nearly
identical sets of definitions only causes confusion.

The Linux-specifed SCSI status codes have been marked obsolete for several
years so drop them and use the SAM-specified status codes throughout.

Link: https://lore.kernel.org/r/20210427083046.31620-41-hare@suse.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2021-04-27 10:30:46 +02:00 committed by Martin K. Petersen
parent 5020714895
commit 3d45cefc8e
18 changed files with 65 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ata/libata-scsi.c
View File

@ -642,7 +642,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
if (cmd->request->rq_flags & RQF_QUIET) if (cmd->request->rq_flags & RQF_QUIET)
qc->flags |= ATA_QCFLAG_QUIET; qc->flags |= ATA_QCFLAG_QUIET;
} else { } else {
cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1); cmd->result = (DID_OK << 16) | SAM_STAT_TASK_SET_FULL;
cmd->scsi_done(cmd); cmd->scsi_done(cmd);
} }

2
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -2232,7 +2232,7 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
* to reduce queue depth temporarily. * to reduce queue depth temporarily.
*/ */
scmnd->result = len == -ENOMEM ? scmnd->result = len == -ENOMEM ?
DID_OK << 16 | QUEUE_FULL << 1 : DID_ERROR << 16; DID_OK << 16 | SAM_STAT_TASK_SET_FULL : DID_ERROR << 16;
goto err_iu; goto err_iu;
} }

2
drivers/scsi/3w-9xxx.c
View File

@ -1338,7 +1338,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
/* If error, command failed */ /* If error, command failed */
if (error == 1) { if (error == 1) {
/* Ask for a host reset */ /* Ask for a host reset */
cmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1); cmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
} }
/* Report residual bytes for single sgl */ /* Report residual bytes for single sgl */

4
drivers/scsi/3w-xxxx.c
View File

@ -429,7 +429,7 @@ static int tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill
/* Additional sense code qualifier */ /* Additional sense code qualifier */
tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3]; tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3];
tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1); tw_dev->srb[request_id]->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
return TW_ISR_DONT_RESULT; /* Special case for isr to not over-write result */ return TW_ISR_DONT_RESULT; /* Special case for isr to not over-write result */
} }
} }
@ -2159,7 +2159,7 @@ static irqreturn_t tw_interrupt(int irq, void *dev_instance)
/* If error, command failed */ /* If error, command failed */
if (error == 1) { if (error == 1) {
/* Ask for a host reset */ /* Ask for a host reset */
tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1); tw_dev->srb[request_id]->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
} }
/* Now complete the io */ /* Now complete the io */

6
drivers/scsi/53c700.c
View File

@ -978,10 +978,10 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION) if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION)
NCR_700_set_tag_neg_state(SCp->device, NCR_700_set_tag_neg_state(SCp->device,
NCR_700_FINISHED_TAG_NEGOTIATION); NCR_700_FINISHED_TAG_NEGOTIATION);
/* check for contingent allegiance conditions */ /* check for contingent allegiance conditions */
if (hostdata->status[0] >> 1 == CHECK_CONDITION || if (hostdata->status[0] == SAM_STAT_CHECK_CONDITION ||
hostdata->status[0] >> 1 == COMMAND_TERMINATED) { hostdata->status[0] == SAM_STAT_COMMAND_TERMINATED) {
struct NCR_700_command_slot *slot = struct NCR_700_command_slot *slot =
(struct NCR_700_command_slot *)SCp->host_scribble; (struct NCR_700_command_slot *)SCp->host_scribble;
if(slot->flags == NCR_700_FLAG_AUTOSENSE) { if(slot->flags == NCR_700_FLAG_AUTOSENSE) {

2
drivers/scsi/NCR5380.c
View File

@ -538,7 +538,7 @@ static void complete_cmd(struct Scsi_Host *instance,
if (hostdata->sensing == cmd) { if (hostdata->sensing == cmd) {
/* Autosense processing ends here */ /* Autosense processing ends here */
if (status_byte(cmd->result) != GOOD) { if (get_status_byte(cmd) != SAM_STAT_GOOD) {
scsi_eh_restore_cmnd(cmd, &hostdata->ses); scsi_eh_restore_cmnd(cmd, &hostdata->ses);
} else { } else {
scsi_eh_restore_cmnd(cmd, &hostdata->ses); scsi_eh_restore_cmnd(cmd, &hostdata->ses);

4
drivers/scsi/arcmsr/arcmsr_hba.c
View File

@ -1326,7 +1326,7 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
struct scsi_cmnd *pcmd = ccb->pcmd; struct scsi_cmnd *pcmd = ccb->pcmd;
struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer; struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
pcmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1); pcmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
if (sensebuffer) { if (sensebuffer) {
int sense_data_length = int sense_data_length =
sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
@ -3253,7 +3253,7 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
if (!ccb) if (!ccb)
return SCSI_MLQUEUE_HOST_BUSY; return SCSI_MLQUEUE_HOST_BUSY;
if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) { if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1); cmd->result = (DID_ERROR << 16) | SAM_STAT_RESERVATION_CONFLICT;
cmd->scsi_done(cmd); cmd->scsi_done(cmd);
return 0; return 0;
} }

2
drivers/scsi/esas2r/esas2r_main.c
View File

@ -1525,7 +1525,7 @@ void esas2r_complete_request_cb(struct esas2r_adapter *a,
rq->cmd->result = rq->cmd->result =
((esas2r_req_status_to_error(rq->req_stat) << 16) ((esas2r_req_status_to_error(rq->req_stat) << 16)
| (rq->func_rsp.scsi_rsp.scsi_stat & STATUS_MASK)); | rq->func_rsp.scsi_rsp.scsi_stat);
if (rq->req_stat == RS_UNDERRUN) if (rq->req_stat == RS_UNDERRUN)
scsi_set_resid(rq->cmd, scsi_set_resid(rq->cmd,

4
drivers/scsi/megaraid.c
View File

@ -1611,7 +1611,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
*/ */
if( cmd->cmnd[0] == TEST_UNIT_READY ) { if( cmd->cmnd[0] == TEST_UNIT_READY ) {
cmd->result |= (DID_ERROR << 16) | cmd->result |= (DID_ERROR << 16) |
(RESERVATION_CONFLICT << 1); SAM_STAT_RESERVATION_CONFLICT;
} }
else else
/* /*
@ -1623,7 +1623,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
cmd->cmnd[0] == RELEASE) ) { cmd->cmnd[0] == RELEASE) ) {
cmd->result |= (DID_ERROR << 16) | cmd->result |= (DID_ERROR << 16) |
(RESERVATION_CONFLICT << 1); SAM_STAT_RESERVATION_CONFLICT;
} }
else else
#endif #endif

4
drivers/scsi/megaraid/megaraid_mbox.c
View File

@ -2327,7 +2327,7 @@ megaraid_mbox_dpc(unsigned long devp)
*/ */
if (scp->cmnd[0] == TEST_UNIT_READY) { if (scp->cmnd[0] == TEST_UNIT_READY) {
scp->result = DID_ERROR << 16 | scp->result = DID_ERROR << 16 |
RESERVATION_CONFLICT << 1; SAM_STAT_RESERVATION_CONFLICT;
} }
else else
/* /*
@ -2338,7 +2338,7 @@ megaraid_mbox_dpc(unsigned long devp)
scp->cmnd[0] == RELEASE)) { scp->cmnd[0] == RELEASE)) {
scp->result = DID_ERROR << 16 | scp->result = DID_ERROR << 16 |
RESERVATION_CONFLICT << 1; SAM_STAT_RESERVATION_CONFLICT;
} }
else { else {
scp->result = DID_BAD_TARGET << 16 | status; scp->result = DID_BAD_TARGET << 16 | status;

48
drivers/scsi/scsi_error.c
View File

@ -745,32 +745,32 @@ static enum scsi_disposition scsi_eh_completed_normally(struct scsi_cmnd *scmd)
* now, check the status byte to see if this indicates * now, check the status byte to see if this indicates
* anything special. * anything special.
*/ */
switch (status_byte(scmd->result)) { switch (get_status_byte(scmd)) {
case GOOD: case SAM_STAT_GOOD:
scsi_handle_queue_ramp_up(scmd->device); scsi_handle_queue_ramp_up(scmd->device);
fallthrough; fallthrough;
case COMMAND_TERMINATED: case SAM_STAT_COMMAND_TERMINATED:
return SUCCESS; return SUCCESS;
case CHECK_CONDITION: case SAM_STAT_CHECK_CONDITION:
return scsi_check_sense(scmd); return scsi_check_sense(scmd);
case CONDITION_GOOD: case SAM_STAT_CONDITION_MET:
case INTERMEDIATE_GOOD: case SAM_STAT_INTERMEDIATE:
case INTERMEDIATE_C_GOOD: case SAM_STAT_INTERMEDIATE_CONDITION_MET:
/* /*
* who knows? FIXME(eric) * who knows? FIXME(eric)
*/ */
return SUCCESS; return SUCCESS;
case RESERVATION_CONFLICT: case SAM_STAT_RESERVATION_CONFLICT:
if (scmd->cmnd[0] == TEST_UNIT_READY) if (scmd->cmnd[0] == TEST_UNIT_READY)
/* it is a success, we probed the device and /* it is a success, we probed the device and
* found it */ * found it */
return SUCCESS; return SUCCESS;
/* otherwise, we failed to send the command */ /* otherwise, we failed to send the command */
return FAILED; return FAILED;
case QUEUE_FULL: case SAM_STAT_TASK_SET_FULL:
scsi_handle_queue_full(scmd->device); scsi_handle_queue_full(scmd->device);
fallthrough; fallthrough;
case BUSY: case SAM_STAT_BUSY:
return NEEDS_RETRY; return NEEDS_RETRY;
default: default:
return FAILED; return FAILED;
@ -1760,7 +1760,7 @@ int scsi_noretry_cmd(struct scsi_cmnd *scmd)
case DID_PARITY: case DID_PARITY:
return (scmd->request->cmd_flags & REQ_FAILFAST_DEV); return (scmd->request->cmd_flags & REQ_FAILFAST_DEV);
case DID_ERROR: case DID_ERROR:
if (status_byte(scmd->result) == RESERVATION_CONFLICT) if (get_status_byte(scmd) == SAM_STAT_RESERVATION_CONFLICT)
return 0; return 0;
fallthrough; fallthrough;
case DID_SOFT_ERROR: case DID_SOFT_ERROR:
@ -1876,7 +1876,7 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
*/ */
return SUCCESS; return SUCCESS;
case DID_ERROR: case DID_ERROR:
if (status_byte(scmd->result) == RESERVATION_CONFLICT) if (get_status_byte(scmd) == SAM_STAT_RESERVATION_CONFLICT)
/* /*
* execute reservation conflict processing code * execute reservation conflict processing code
* lower down * lower down
@ -1907,15 +1907,15 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
/* /*
* check the status byte to see if this indicates anything special. * check the status byte to see if this indicates anything special.
*/ */
switch (status_byte(scmd->result)) { switch (get_status_byte(scmd)) {
case QUEUE_FULL: case SAM_STAT_TASK_SET_FULL:
scsi_handle_queue_full(scmd->device); scsi_handle_queue_full(scmd->device);
/* /*
* the case of trying to send too many commands to a * the case of trying to send too many commands to a
* tagged queueing device. * tagged queueing device.
*/ */
fallthrough; fallthrough;
case BUSY: case SAM_STAT_BUSY:
/* /*
* device can't talk to us at the moment. Should only * device can't talk to us at the moment. Should only
* occur (SAM-3) when the task queue is empty, so will cause * occur (SAM-3) when the task queue is empty, so will cause
@ -1923,16 +1923,16 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
* device. * device.
*/ */
return ADD_TO_MLQUEUE; return ADD_TO_MLQUEUE;
case GOOD: case SAM_STAT_GOOD:
if (scmd->cmnd[0] == REPORT_LUNS) if (scmd->cmnd[0] == REPORT_LUNS)
scmd->device->sdev_target->expecting_lun_change = 0; scmd->device->sdev_target->expecting_lun_change = 0;
scsi_handle_queue_ramp_up(scmd->device); scsi_handle_queue_ramp_up(scmd->device);
fallthrough; fallthrough;
case COMMAND_TERMINATED: case SAM_STAT_COMMAND_TERMINATED:
return SUCCESS; return SUCCESS;
case TASK_ABORTED: case SAM_STAT_TASK_ABORTED:
goto maybe_retry; goto maybe_retry;
case CHECK_CONDITION: case SAM_STAT_CHECK_CONDITION:
rtn = scsi_check_sense(scmd); rtn = scsi_check_sense(scmd);
if (rtn == NEEDS_RETRY) if (rtn == NEEDS_RETRY)
goto maybe_retry; goto maybe_retry;
@ -1941,16 +1941,16 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
* to collect the sense and redo the decide * to collect the sense and redo the decide
* disposition */ * disposition */
return rtn; return rtn;
case CONDITION_GOOD: case SAM_STAT_CONDITION_MET:
case INTERMEDIATE_GOOD: case SAM_STAT_INTERMEDIATE:
case INTERMEDIATE_C_GOOD: case SAM_STAT_INTERMEDIATE_CONDITION_MET:
case ACA_ACTIVE: case SAM_STAT_ACA_ACTIVE:
/* /*
* who knows? FIXME(eric) * who knows? FIXME(eric)
*/ */
return SUCCESS; return SUCCESS;
case RESERVATION_CONFLICT: case SAM_STAT_RESERVATION_CONFLICT:
sdev_printk(KERN_INFO, scmd->device, sdev_printk(KERN_INFO, scmd->device,
"reservation conflict\n"); "reservation conflict\n");
set_host_byte(scmd, DID_NEXUS_FAILURE); set_host_byte(scmd, DID_NEXUS_FAILURE);

2
drivers/scsi/scsi_lib.c
View File

@ -873,7 +873,7 @@ static int scsi_io_completion_nz_result(struct scsi_cmnd *cmd, int result,
* if it can't fit). Treat SAM_STAT_CONDITION_MET and the related * if it can't fit). Treat SAM_STAT_CONDITION_MET and the related
* intermediate statuses (both obsolete in SAM-4) as good. * intermediate statuses (both obsolete in SAM-4) as good.
*/ */
if (status_byte(result) && scsi_status_is_good(result)) { if ((result & 0xff) && scsi_status_is_good(result)) {
result = 0; result = 0;
*blk_statp = BLK_STS_OK; *blk_statp = BLK_STS_OK;
} }

2
drivers/scsi/sr.c
View File

@ -338,7 +338,7 @@ static int sr_done(struct scsi_cmnd *SCpnt)
* care is taken to avoid unnecessary additional work such as * care is taken to avoid unnecessary additional work such as
* memcpy's that could be avoided. * memcpy's that could be avoided.
*/ */
if (status_byte(result) == SAM_STAT_CHECK_CONDITION && if (scsi_status_is_check_condition(result) &&
(SCpnt->sense_buffer[0] & 0x7f) == 0x70) { /* Sense current */ (SCpnt->sense_buffer[0] & 0x7f) == 0x70) { /* Sense current */
switch (SCpnt->sense_buffer[2]) { switch (SCpnt->sense_buffer[2]) {
case MEDIUM_ERROR: case MEDIUM_ERROR:

2
drivers/scsi/sr_ioctl.c
View File

@ -205,7 +205,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
err = result; err = result;
goto out; goto out;
} }
if (status_byte(result) == SAM_STAT_CHECK_CONDITION) { if (scsi_status_is_check_condition(result)) {
switch (sshdr->sense_key) { switch (sshdr->sense_key) {
case UNIT_ATTENTION: case UNIT_ATTENTION:
SDev->changed = 1; SDev->changed = 1;

2
drivers/xen/xen-scsiback.c
View File

@ -224,7 +224,7 @@ static void scsiback_print_status(char *sense_buffer, int errors,
pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x\n", pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x\n",
tpg->tport->tport_name, pending_req->v2p->lun, tpg->tport->tport_name, pending_req->v2p->lun,
pending_req->cmnd[0], status_byte(errors), COMMAND_COMPLETE, pending_req->cmnd[0], errors & 0xff, COMMAND_COMPLETE,
host_byte(errors)); host_byte(errors));
} }

1
include/scsi/scsi.h
View File

@ -184,7 +184,6 @@ enum scsi_disposition {
* msg_byte (unused) * msg_byte (unused)
* host_byte = set by low-level driver to indicate status. * host_byte = set by low-level driver to indicate status.
*/ */
#define status_byte(result) (((result) >> 1) & 0x7f)
#define host_byte(result) (((result) >> 16) & 0xff) #define host_byte(result) (((result) >> 16) & 0xff)
#define sense_class(sense) (((sense) >> 4) & 0x7) #define sense_class(sense) (((sense) >> 4) & 0x7)

22
include/scsi/scsi_proto.h
View File

@ -202,27 +202,7 @@ struct scsi_varlen_cdb_hdr {
#define SAM_STAT_ACA_ACTIVE 0x30 #define SAM_STAT_ACA_ACTIVE 0x30
#define SAM_STAT_TASK_ABORTED 0x40 #define SAM_STAT_TASK_ABORTED 0x40
/* #define STATUS_MASK 0xfe
* Status codes. These are deprecated as they are shifted 1 bit right
* from those found in the SCSI standards. This causes confusion for
* applications that are ported to several OSes. Prefer SAM Status codes
* above.
*/
#define GOOD 0x00
#define CHECK_CONDITION 0x01
#define CONDITION_GOOD 0x02
#define BUSY 0x04
#define INTERMEDIATE_GOOD 0x08
#define INTERMEDIATE_C_GOOD 0x0a
#define RESERVATION_CONFLICT 0x0c
#define COMMAND_TERMINATED 0x11
#define QUEUE_FULL 0x14
#define ACA_ACTIVE 0x18
#define TASK_ABORTED 0x20
#define STATUS_MASK 0xfe
/* /*
* SENSE KEYS * SENSE KEYS
*/ */

20
include/scsi/sg.h
View File

@ -145,6 +145,26 @@ struct compat_sg_io_hdr {
/* Obsolete driver_byte() declaration */ /* Obsolete driver_byte() declaration */
#define driver_byte(result) (((result) >> 24) & 0xff) #define driver_byte(result) (((result) >> 24) & 0xff)
/*
* Original linux SCSI Status codes. They are shifted 1 bit right
* from those found in the SCSI standards.
*/
#define GOOD 0x00
#define CHECK_CONDITION 0x01
#define CONDITION_GOOD 0x02
#define BUSY 0x04
#define INTERMEDIATE_GOOD 0x08
#define INTERMEDIATE_C_GOOD 0x0a
#define RESERVATION_CONFLICT 0x0c
#define COMMAND_TERMINATED 0x11
#define QUEUE_FULL 0x14
#define ACA_ACTIVE 0x18
#define TASK_ABORTED 0x20
/* Obsolete status_byte() declaration */
#define status_byte(result) (((result) >> 1) & 0x7f)
typedef struct sg_scsi_id { /* used by SG_GET_SCSI_ID ioctl() */ typedef struct sg_scsi_id { /* used by SG_GET_SCSI_ID ioctl() */
int host_no; /* as in "scsi<n>" where 'n' is one of 0, 1, 2 etc */ int host_no; /* as in "scsi<n>" where 'n' is one of 0, 1, 2 etc */
int channel; int channel;